Transcript Blueprint Reading for the Machine Trades, Sixth Edition Unit 16

Blueprint Reading for the
Machine Trades, Sixth Edition
Unit 16: Weldments
Russ Schultz and Larry Smith
PowerPoint presentation created by
LaVonne Vichlach
1
Weldments





Created from individual pieces of metal that
have been welded together
Almost all metals can be welded-some are
easier to work with
Low-carbon can be welded easier than highcarbon
Thin and very thick material require special
considerations
Weld drawings have weld symbols
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
2
Types of Joints
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
3
Types of Welds

Four basic types of gas and arc welds

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
Fillet
Groove-named for shape-V(both pieces are
beveled), J or U (both pieces J-grooved)
Plug or slot-used when fastening one piece
on top of another-eliminate fasteners
Back or backing weld-surface of joints
when of groove is used
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
4
Types of Welds
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
5
Welding Symbols


Graphical symbols have been
established for use on weldments
Symbols are part of ANSI?AWS A2.4-98
sponsored by American Welding Society
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
6
Reference Line



Reference line forms body of welding
symbol
All other elements are placed in
designated positions with respect to this
line
Arrow is affixed to one end and a tail,
when required, is affixed to the other
end
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
7
Reference Line
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
8
Arrow





Connects the reference line to one side of the
weld joint
Side touched by arrowhead becomes known
as the arrow side
Opposite side is the other side of the joint
Bevel and J-groove symbols may include
double bend in arrow
Arrow is pointing to the member that is to
receive the groove
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
9
Basic Weld Symbols


Symbols designate the type of weld to be
performed
Position on the reference line is approximate
center-above or below or on both sides of the
line
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
10
Basic Weld Symbols



Symbols below the line designate the weld to
be on the arrow side of the joint
Symbols above the line designate the other
side of the joint
Symbols on both sides of line indicates weld
on both sides of the joint
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
11
Basic Weld Symbols
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Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
12
Standard Location of Elements
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Blueprint Reading for the
Machine Trades, 6th edition
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13
Supplementary Symbols



Convey additional information relative
to the extent of the welding
Where the welding is performed and
the contour of the weld
“Weld all around” and “field weld”
symbols appear at the end of the
reference line-at junction of arrow
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Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
14
Supplementary Symbols



Melt–thru symbol is used where 100%
joint or member penetration plus
reinforcement is required
Contour symbol is placed above or
below the weld symbol
Finish symbol is placed above or below
the contour symbol
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Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
15
Supplementary Symbols





C = chipping
G = grinding
M = machining
R = rolling
H = hammering
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
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16
Supplementary Symbols
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Machine Trades, 6th edition
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17
Dimension




Size of weld appears to the left of the basic
weld symbol
Length of weld appears to the right of the
symbol
Length followed by dash designates the
center-to-center spacing of intermittent welds
Angles of grooves and included angles of
countersinks for plug weld appears above or
below symbol
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Blueprint Reading for the
Machine Trades, 6th edition
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18
Tail




Appears on the end of the reference line,
opposite the arrow end-whenever a
specification, process, or other reference is
made in welding symbol
Tail is omitted when no specification, process
or references are needed
Specified welding processes will appear in tail
of welding symbol as letters
Standard letter designations in chart form
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Blueprint Reading for the
Machine Trades, 6th edition
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19
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
20
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
21
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
22
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
23
Welding Symbol Quiz 1
List the weld name,
joint side, and other
supplementary
information for the
symbol to the right.
1.
Fillet weld, arrow side
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Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
24
Welding Symbol Quiz 1
List the weld name,
joint side, and other
supplementary
information for the
symbol to the right.
2.
Square groove weld, both sides of the joint
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
25
Welding Symbol Quiz 1
List the weld name,
joint side, and other
supplementary
information for the
symbol to the right.
3.
Bevel groove weld, opposite side and melt through
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Blueprint Reading for the
Machine Trades, 6th edition
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26
Welding Symbol Quiz 1
List the weld name,
joint side, and other
supplementary
information for the
symbol to the right.
4.
V-groove weld, both sides & machine flush contour
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
27
Welding Symbol Quiz 1
List the weld name,
joint side, and other
supplementary
information for the
symbol to the right.
5.
.50 fillet weld, arrow side, field weld
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Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
28
Welding Symbol Quiz 1
List the weld name,
joint side, and other
supplementary
information for the
symbol to the right.
6.
Fillet weld, all around joint, torch brazing
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Machine Trades, 6th edition
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29
Welding Symbol Quiz 1
List the weld name,
joint side, and other
supplementary
information for the
symbol to the right.
7.
Plug or slot weld, arrow side,
1” Dia, 30° Angle, 4” pitch
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Blueprint Reading for the
Machine Trades, 6th edition
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30
Welding Symbol Quiz 1
List the weld name,
joint side, and other
supplementary
information for the
symbol to the right.
8.
Bevel groove & fillet weld, arrow side,
fillet weld opposite side, 2” LG, 5” Pitch
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Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
31
Welding Symbol Quiz 1
List the weld name,
joint side, and other
supplementary
information for the
symbol to the right.
9.
U-groove & fillet weld, arrow side w/convex
contour
& back or backing weld opposite side
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Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
32
Welding Symbol Quiz 1
List the weld name,
joint side, and other
supplementary
information for the
symbol to the right.
10.
J-groove weld opposite side
(groove is in right or bottom PC)
& back or backing weld arrow side w/flush contour
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
33
Welding
Symbol
Exercise
Draw the symbol for
the letter identified
below.
For the letter “A.”
Fillet weld both
sides.
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
34
Welding
Symbol
Exercise
Draw the symbol for
the letter identified
below.
For the letter “B.”
Fillet weld all
around.
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
35
Welding
Symbol
Exercise
Draw the symbol for
the letter identified
below.
For the letter “C.”
V-groove weld
arrow side, grind
flush. Fillet weld
opposite side.
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
36
Welding
Symbol
Exercise
Draw the symbol for
the letter identified
below.
For the letter “D.” Jgroove weld both
sides, then fillet
weld both sides
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
37
Resistance Welds





Spot
Projection
Seam
Flash
Upset welds
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
38
Spot Welding



Used for fusing two or more sheets of
metal together
Applying pressure by means of
electrodes
Pass high current at low voltage
through sheets from one electrode to
another
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
39
Projection Welding


Projections are embossed into one of
the pieces
Larger electrodes are used that
accommodate several welds
simultaneously
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Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
40
Seam Welding



An adaptation of spot welding
Uses continuously rotating rollers for
electrodes
Rollers create a series of overlapping
spots as electrodes are automatically
turned on and off as they revolve
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
41
Flash or Upset Welding



Used to join the ends of bars, rods,
strips, tubing, etc.
Clamp tow pieces together in fixtures
facing each other
Bring ends together and hold them
together them under pressure until
fusion takes place
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
42
Resistance Welding Symbols




Spot, seam, flash, and upset weld symbols do
not normally have arrow-side or other-side
significance-so they are centered on
reference line
Projection weld abbreviated RPW
Designate either arrow-side to indicate which
piece receives the projection
Standard letter designation for process is
included in the tail
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
43
Resistance Welding
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
44
Welding Symbol Quiz 2
1.
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
Resistance
projection weld
(opposite side
receives
projection)
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
45
Welding Symbol Quiz 2
Flash weld
2.
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
46
Welding Symbol Quiz 2
3.
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
Resistance
seam weld, .25
size
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
47
Welding Symbol Quiz 2
4.
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
Resistance spot
weld, 700 LB.
strength
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48
Welding Symbol Quiz 2
5.
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
Resistance
projection
weld, arrow
side, 500 LB.
Strength, 2.00
pitch, Qty 3
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
49
Welding Symbol Quiz 2
6.
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
Resistance spot
weld, .50 size,
6.00 pitch
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
50
Welding Symbol Quiz 2
7.
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
Resistance
seam weld,
1000 LB.
Strength, 5”
Lg., 10” pitch
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
51
Welding Symbol Quiz 2
8.
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
Upset weld,
grind convex
contour, both
sides
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
52
Welding Symbol Quiz 2
9.
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
Resistance spot
weld, .25 size,
3” pitch, Qty 4
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
53
Welding Symbol Quiz 2
10.
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
Resistance
projection
weld, opposite
side, 3/8 size,
4” pitch, Qty 6
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
54
Welding Symbol Quiz 3
1. Weld all around
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
55
Welding Symbol Quiz 3
2. Field weld
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
56
Welding Symbol Quiz 3
3. Back or backing
weld
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
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Welding Symbol Quiz 3
4. Melt-thru
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
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Welding Symbol Quiz 3
5. Weld other side
only
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
59
Welding Symbol Quiz 3
6. V-groove weld
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
60
Welding Symbol Quiz 3
7. J-groove weld
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
61
Welding Symbol Quiz 3
8. Bevel groove
weld
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
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Welding Symbol Quiz 3
9. Plug or slot weld
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
63
Welding Symbol Quiz 3
10. Resistance spot
weld
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
64
Welding Symbol Quiz 3
11. Surfacing
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
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65
Welding Symbol Quiz 3
12. Flare-V weld
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
66
Welding Symbol Quiz 3
13. Upset weld
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
67
Welding Symbol Quiz 3
14. Flush contour
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
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Welding Symbol Quiz 3
15. Resistance seam
weld
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
69
Welding Symbol Quiz 3
16. Flare-bevel weld
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Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
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Welding Symbol Quiz 3
17. Concave contour
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
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Welding Symbol Quiz 3
18. Root opening
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Blueprint Reading for the
Machine Trades, 6th edition
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Welding Symbol Quiz 3
19. Square groove
weld
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
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73
Welding Symbol Quiz 3
20. Edge-flange weld
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Blueprint Reading for the
Machine Trades, 6th edition
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74
FLG TUBE
WELDMENT
1. Describe the
complete
specifications from
the welding symbol
located at “A.”
Bevel groove weld
.25 DP, then fillet
weld .25 x .50, all
around joint
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
75
FLG TUBE
WELDMENT
2. Describe the
complete
specifications from
the welding symbol
located at “B.”
Bevel groove
weld, flush
contour, both
sides of joint
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
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76
FLG TUBE
WELDMENT
3. Describe the
complete
specifications from
the welding symbol
located at “C.”
J-groove weld,
then fillet weld,
both sides of
joint
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
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77
FLG TUBE
WELDMENT
4. Describe the
complete
specifications from
the welding symbol
located at “D.”
J-groove weld, arrow
side, machine flush.
Back or backing weld
opposite side. (Groove
is in .750 x 1.75 PC
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
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78
FLG TUBE
WELDMENT
5. Describe the
complete
specifications from
the welding symbol
located at “E.”
Field weld, .50
fillet, concave
contour, all
around joint
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
79
FLG TUBE
WELDMENT
6. What is the
MMC of
diameter F ?
3.02
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Blueprint Reading for the
Machine Trades, 6th edition
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80
FLG TUBE
WELDMENT
7. What is the
MMC of
diameter G ?
2.48
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Blueprint Reading for the
Machine Trades, 6th edition
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81
FLG TUBE
WELDMENT
8. What is the
MMC of
diameter H ?
1.999
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Blueprint Reading for the
Machine Trades, 6th edition
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82
FLG TUBE
WELDMENT
9. What is the
maximum
overall height
dimension I ?
12.025
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Blueprint Reading for the
Machine Trades, 6th edition
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83
FLG TUBE
WELDMENT
10. What is the
maximum
overall width
dimension J ?
6.53
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Blueprint Reading for the
Machine Trades, 6th edition
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84
FLG TUBE
WELDMENT
11. How many
individual
pieces are
required to
make one
complete
weldment?
5
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Blueprint Reading for the
Machine Trades, 6th edition
© 2008 Pearson Education, Upper Saddle River, NJ 07458. All Rights Reserved.
85
FLG TUBE
WELDMENT
12. What size is
the locational
tolerance
zone if the
three reamed
holes
measure
exactly .500?
.022
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
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86
FLG TUBE
WELDMENT
13. What size is the
locational
tolerance zone if
the three
counterbored
holes measure
exactly .375?
.016
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
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87
FLG TUBE
WELDMENT
14. What is the
geometric
tolerance on
datum A if the
base thickness
measures exactly
.748?
.002
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
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88
FLG TUBE
WELDMENT
15. Calculate the
minimum possible
material between the
side of a reamed
hole and the flange
OD. (Consider the
geometric tolerance.)
.479
Schultz and Smith:
Blueprint Reading for the
Machine Trades, 6th edition
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89